222170840

素因数分解:

$2^3\times 5^1\times {\mathrm{2179}}^1\times {\mathrm{2549}}^1$

素因数の和:4739

約数の個数: 32

約数和(自身を含む): 500310000

約数和(自身を除く): 278139160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2179, 2549, 4358, 5098, 8716, 10196, 10895, 12745, 17432, 20392, 21790, 25490, 43580, 50980, 87160, 101960, 5554271, 11108542, 22217084, 27771355, 44434168, 55542710, 111085420, 222170840]

約数ペア:

[(1, 222170840), (2, 111085420), (4, 55542710), (5, 44434168), (8, 27771355), (10, 22217084), (20, 11108542), (40, 5554271), (2179, 101960), (2549, 87160), (4358, 50980), (5098, 43580), (8716, 25490), (10196, 21790), (10895, 20392), (12745, 17432)]